After you powered up your clock, the display will come on with 0:00 with the
displays "150" PPM
relevant temperature and relative humidity. Your CO
2
and starts to countdown. In around 150 seconds (2.5 minutes) a relevant
CO
data will be displayed. It will continue to calibrate itself and display the
2
correct CO
data in 24 hours.
2
If the AC power is interrupted, the display is turned off. The settings of your
unit will be kept by the internal memory chip and the time will be kept by the
backup batteries installed. Your clock will function again after the AC power
resumes.
Ventilation recommendation on the basis of CO2 concentration
in the air
Measuring range
Display status
Over 2000 ppm eq
1501 – 2000 ppm eq
1001 – 1500 ppm eq
601 – 1000 ppm eq
400 – 600 ppm eq
Your CO2 monitor measures and displays the CO2 in PPM with color
ventilation recommendations:
The
icons flash when the current CO2 exceeds 2000 ppm.
2
To Set Time, 12/24 Hour, High-Low Alert of CO
and Humidity
button, the hour digit "0" flashes. Press the
1) Press and hold the
or
button to set the hours.
EN3